Cheapest return flights from Las Vegas to London in September from $663

Best time to book flights for Las Vegas (LAS) to London (LHR) flights at AirHint

AirHint found the following cheapest return flights from Las Vegas (LAS) to London (LHR) in September 2025 (see full year).

Return flights

22 Sep - 06 Oct Finnair
23 Sep - 30 Sep Scandinavian Airlines
05 Sep - 12 Sep Air Canada
22 Sep - 29 Sep United
12 Sep - 19 Sep United
20 Sep - 25 Sep Spirit Airlines
07 Sep - 14 Sep United
15 Sep - 01 Oct Delta
27 Sep - 04 Oct United
17 Sep - 24 Sep British Airways direct
17 Sep - 20 Sep jetBlue
22 Sep - 06 Oct Iberia direct
05 Sep - 12 Sep British Airways direct
20 Sep - 25 Sep British Airways direct

Also check the deals for one-way flights from Las Vegas to London in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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